test case for #408

tests/bugs.txt

@@ -7,3 +7,4 @@ numpy_ValueError_T172
 unsignedbehaviour_T184
 missing_baseclass_in_predecl_T262
 tp_new_T454
+cfunc_call_tuple_args_T408

tests/run/cfunc_call_tuple_args_T408.pyx

+__doc__ = """
+>>> call_with_tuple(1, 1.2, 'test', [1,2,3])
+(1, 1.2, 'test', [1, 2, 3])
+
+>>> call_with_list(1, 1.2, None, None)
+(1, 1.2, None, None)
+"""
+
+cdef c_function(int a, float b, c, list d):
+    return a,b,c,d
+
+def call_with_tuple(*args):
+    return c_function(*args)
+
+def call_with_list(*args):
+    args = list(args)
+    return c_function(*args)